Title
Statistical efficiency of composite position measurements from passive sensors
Abstract
Combining line-of-sight (LOS) measurements from passive sensors (e.g., satellite-based IR, ground-based cameras, etc.), assumed to be synchronized, into a single composite Cartesian measurement (full position in 3D) via maximum likelihood (ML) estimation, can circumvent the need for nonlinear filtering-which involves, by necessity, approximations. This ML estimate is shown to be statistically efficient, even for small sample sizes (as few as two LOS measurements), and as such, the covariance matrix obtainable from the Cramer-Rao lower bound (CRLB) provides the correct measurement noise covariance matrix for use in a target tracking filter.
Year
DOI
Venue
2013
10.1117/12.883045
IEEE Transactions on Aerospace and Electronic Systems
Keywords
Field
DocType
Sensors,Position measurement,Noise measurement,Maximum likelihood estimation,Covariance matrices,Noise
Efficiency,Cramér–Rao bound,Computer vision,Satellite,Composite Position,Upper and lower bounds,Matrix (mathematics),Algorithm,Artificial intelligence,Covariance matrix,Cartesian coordinate system,Physics
Journal
Volume
Issue
ISSN
49
4
0277-786X
Citations 
PageRank 
References 
4
2.06
0
Authors
2
Name
Order
Citations
PageRank
Richard W. Osborne III1156.05
Yaakov Bar-Shalom246099.56